diff --git a/README.md b/README.md
index 5678555..755d213 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,9 @@ Note that you will need to use Rufus; Ventoy does not work on this laptop (hangs
 
 ## Installing River
 
-In `/etc/apk/repositories`, uncomment TODO
+In `/etc/apk/repositories`, comment out 3.16, uncomment edge (main, community, testing),
+since some of the packages we're going to install (river, element-desktop)
+only exist in testing.
 
 ```
 doas apk update